British alunite
Latin alumni
Trade names alum, alum, alum.
The prescription name is alum, alum, raw alum, raw alum, dried alum, dried alum and alum.
The taste is astringent, sour and cold, and the toxicity is small.
Meridian belongs to lung, spleen, liver and large intestine.
Efficacy: eliminating phlegm and dampness, detoxifying and killing insects, stopping diarrhea and stopping bleeding.
Textual research on alum was first found in Ben Jing, formerly known as Alum Stone, which was listed as the top grade. "Wupu Materia Medica" contains: "Fan Shi was born in Hexi (now west of the Yellow River in Gansu and Qinghai provinces), Wudu in Longxi (now Wudu area in Gansu) and Shimen (now northern Hunan). Hurry up. " Tao Hongjing said, "I'm from Xichuan, north of Yizhou, and I'm from Hexi. I am blue and white, and my real name is horse tooth alum. It has been refined into absolute white, and the Shu people use it as a stone, named alum. " "The Classic of Materia Medica" said: "Alum stone, born as stone, is mashed and refined into alum." Li Shizhen said: "Alum was called the White Army by alchemists, and it was one of the people who came from Shanxi (now Shanxi Province), followed by Qingzhou (now Shandong Province) and Wuzhong (now Jiangsu Province). White is alum; Bright is alum, also known as mica alum; Writing is like a pile of needles. It looks like puffs. It's Persian alum. Just take medicine. " According to the above historical documents, it can be considered that alum is the product of natural alunite after processing and refining.
① Upp Materia Medica: "Fan Shi was born in Hexi or Longxi, or Shimen, Wudu. Hurry up. " (2) Tao Hongjing: "I am from Xichuan, North Yizhou, and I came from Hexi. The living person's name is Maya alum, which has been refined into white, and Shu people regard it as saltpeter and alum. Its yellow and black name is chicken excrement alum, which is not used as medicine. In common customs, the combination of medicines is boiled first to make the teeth dry, so as to treat toothache. Most of them are bad teeth, which is a sign of bone injury, while the clouds are firm and sincere. " (3) Tang Materia Medica: "There are five kinds of alum, namely, soap alum, alum, alum, black alum and red alum. However, alum is often used as medicine, melanterite and black alum are used to treat malnutrition and sore poison, and alum is also used to treat sore poison and raw meat, and also used for skin dyeing. Its crimson alum was originally green, but people who have just come out of the hole and have never seen the wind, like glazed pottery and what modern people call stone gall, burn red, hence the name crimson alum. Out of Guazhou. " (4) The Classic of Materia Medica: "Alum was born in Jinzhou and Cizhou today. There are alum essence and alum butterfly. When alum is smelted, it will boil extremely. Splashes in the center of the dish will fly out like things, and then they will be connected with iron knives. If it is a worm, it will also be an alum butterfly. However, if the chess pieces are as bright as crystal, alum will do. Both of these medicines are better than alum. There is also a catkin alum, which is also found in alum. After frying, it is as light as cotton wool, hence the name. Today, doctors are very good at treating phlegm and cardiopulmonary stimulation. Liu Yuxi's "Fang Chuanxin" treats Qi Li Bashi Pill. Take a pound of alum and burn it with charcoal until the juice is exhausted. Its color is like snow, which is called Bashi. Or the blue and black in alum, called Ba Shi.
The drug source is the crystal of alunite, which is a sulfate alum mineral.
Morphology and crystal structure belong to ternary system. The crystal is small diamond-shaped or plate-shaped, usually in the form of dense block, fine grain, soil and so on. Colorless or white, often with pale yellow and pink. The stripes are white. Glassy luster, sometimes pearl luster on cleavage parallel plane, dull or waxy luster on block. The fracture is shell-shaped; The stones are flaky and jagged. The hardness is 3.5 ~ 4. The relative density is 2.6 ~ 2.9. Fragile.
It is often formed by metamorphism of alkali feldspar under the action of low-temperature sulfate solution, and mostly occurs in volcanic rocks. It also produces some polymetallic ores. Distributed in Gansu, Hebei, Anhui, Fujian, Shanxi, Hubei, Zhejiang and other places.
Location: Pingyang, Zhejiang, Wuwei, Anhui and Fuding, Fujian; Shanxi, Hebei and Hubei are also produced. Sold all over the country.
It can be mined all year round. The collected raw minerals are crushed, dissolved in water, filtered, heated, evaporated and concentrated, and the crystals separated after cooling are the products.
Processing 1. Alum "Historical Records Prescription": "Tapping, textual research." "cemetery side": "pour alum as the end." At present, the original medicinal materials are taken to remove impurities. Mash it with time. Health preservation is mainly used for detoxifying and resolving phlegm.
2. Dry alum "Introduction to Medicinal Materia Medica": "Fine grinding, put in a crock, fire calcined for a long time, white as pink, named dry alum." At present, clean small pieces or coarse powder of alum are put into a pot, heated to melt with strong fire, then calcined to be crisp, completely dried, stopped, taken out, cooled and ground into fine powder. After calcination, the function of convergent drying can be enhanced.
Store in a dry container, in a dry place, dust-proof.
Commodity situation
Characteristics of medicinal materials This product is an irregular crystal block. Colorless or white. Transparent or translucent, glass luster. The surface is slightly smooth or uneven, with thin longitudinal edges and white fine powder. Hard and brittle, easy to crush. Slight breath, slightly sweet, and extremely astringent taste.
It is best to be large, colorless, transparent and impurity-free.
Identification of medicinal materials soluble in water or glycerol, insoluble in alcohol. The aqueous solution shows various reactions of aluminum salt, potassium salt and sulfate. It is best to be white, transparent, hard and brittle, and free of impurities.
Can be used for apoplexy, epilepsy, laryngitis, phlegm retention, asthma and cough, and alum can eliminate phlegm and open and close. For sudden death due to stroke, it can be combined with Zhu Ya Zao to strengthen the opening and closing function of eliminating phlegm and make sputum spit out, for example, Shuxian Powder in Sheng Ji Zong Lu. For epilepsy with excessive phlegm and sudden fainting and vomiting, it is often combined with Yujin to clear phlegm and induce resuscitation, for example, Bai Jin Pill from Medical Prescription. Gleditsia sinensis juice, if taken as pills, can also treat acute throat wind obstruction, phlegm obstruction and dyspnea; Or used with Bombyx Batryticatus. For patients with phlegm, asthma, cough and chest fullness, Alumen can be used together with Pinellia ternata, Rhizoma Cyperi and ginger juice to eliminate dampness and phlegm, regulate qi and broaden chest. Collection and arrangement of medical education network
Can be used for treating carbuncle, furuncle, malignant sore, etc. Alum is mostly for external use and has the effect of detoxifying and healing sores. It can be combined with Huang Dan to strengthen detoxification and heal sores, for example, Erxian Powder in Health Care Bao. After gangrene festers, carrion does not fall off, or pterygium proliferates. Use dried alum and mirabilite to grind into powder, detoxify and remove rot, smooth callus and promote granulation growth. If the cold sore becomes a fistula and the pus is endless, the same amount of Trogopterori for promoting blood circulation and removing blood stasis is twisted into the fistula until the pus is exhausted. However, alum can also detoxify and reduce swelling, so if furuncle and other malignant diseases start at first, but do not fester, this product is mashed with scallion in surgical authenticity and taken with hot wine; Or use yellow wax to melt into pills, which will disappear if it doesn't collapse, and will heal itself if it collapses. As for those who are slightly burned by fire and water, dry alum solution can be used to wet compress the wound. For poisonous insect stings, alum and realgar can divide the powder and film coating equally.
It can be used for treating aphtha of tongue and mouth, nasal heat sore, conjunctival congestion, and purulent discharge in ear. Alum is also used to detoxify and treat sores. It can be used for treating oral cavity and tongue sore by mixing dried Alumen with Huang Dan or Cinnabaris for external use. To treat gum swelling and pain, alum and honeycomb are used as powder and decocted with water, which is irritating. For those with heat toxic sores and purulent smell in the nose, dry alum is added to the nose with decoctions of Radix Rehmanniae and Radix Sophorae Flavescentis to clear away heat and remove turbidity. Polyps grow in the nose and don't smell fragrant, so apply dried alum powder and facial fat, or use sal ammonite as fine powder, point it on the polyps and corrode it. For the treatment of ocular fire, the pain is endless. Egg white can be mixed with dried alum powder and rubbed on eye cells to clear away heat and relieve pain, such as Niantong Powder in Yao Xin. To treat purulent discharge in the ear, this product is mixed with rouge and blown into the ear to detoxify and heal sores, as shown in Hongmian Powder in Medical Prescription.
Can be used for treating scabies and wet sores. Alum tastes bitter and cold, and can detoxify, kill insects, dry dampness and relieve itching for external use. For scabies and itching, it is often used in combination with sulfur and calomel. For all dry and wet stubborn tinea, this product can be mixed with rice vinegar alone, or mixed with pomegranate peel or sheep hoof root, which can enhance the insecticidal and antipruritic effect. For patients with scrotal sores, itching and seborrhea, wash them with alum water alone, or mix them with Fructus Cnidii and Rhizoma Coptidis to make powder for external use, so as to strengthen heat-clearing and dampness-drying; Dispelling wind and relieving itching; For patients with yellow sores that have been soaked and eroded, dried alum and realgar are used as the last dressing. This product is also used for preventing and treating dermatitis in paddy field, and soaking hands and feet with Zanthoxylum bungeanum decoction.
For diarrhea, dysentery and leukorrhagia. Alumen has astringent and antidiarrheal effects when taken orally. For chronic diarrhea due to physical weakness in the elderly, it can be used together with Hulile to stop diarrhea and astringent intestines, for example, Hulile Powder in Shenghui Fang. If diarrhea persists, it is combined with sulfur and saltpetre to warm kidney, strengthen spleen and guide stagnation, such as Fang Alumen Pill. This product is cold in nature and has the functions of clearing away heat and toxic materials and eliminating dampness. Its advantage is convergence without leaving evil, so it can be used for damp-heat diarrhea. Those with spleen deficiency and dampness are Atractylodes macrocephala, Angelica dahurica, cuttlefish bone, etc. It is used to strengthen the spleen and eliminate dampness. For those with damp-heat itching, it can be combined with herbs such as Cortex Phellodendri, Radix Sophorae Flavescentis and Fructus Cnidii to clear away heat and dry dampness, kill insects and stop leukorrhagia.
Used for hematemesis, hemoptysis, hematochezia and metrorrhagia. Alumen can be taken orally or combined with Galla Chinensis, carbonized hair and catechu to enhance the curative effect. Epistaxis and epistaxis can also be used alone for external use. Traumatic bleeding, in addition to single use, or with frankincense, rosin grinding and external application, in order to achieve the purpose of hemostasis.
In addition, alum is still used to treat damp-heat jaundice, and it can be used together with digestion, for example, Fan Shi Powder for Digestion in Synopsis of the Golden Chamber. External application of dried alum can treat yin sweat, axillary sweat, foot sweat and body odor. In recent years, it has been used for treating gastric and duodenal ulcer, and is made of dried alum, Rhizoma Corydalis, cuttlefish bone and honey.
Dose1.00-3.00g-3.00g
Taboo: this taste is hard to take, and it is not suitable for taking too much orally, which may easily cause vomiting; People with weak body and stomach should take it with caution.
Additional prescription
1. For stroke, Alumen, Pinellia ternata (washed with soup to remove slippery, baked) and Rhizoma Arisaematis are used together. Add three flavors and grind them into fine powder. Take a good wine lamp every time, two yuan at the end of the medicine, three slices of ginger, fry for seven minutes, and take it with warm water. When spitting, help them sit up straight, but don't let them lie down after repeating it many times. If they lie down, it's hard to vomit. After a long time, it takes one yuan to decoct according to law, and only half a dollar to take it again. (Life-saving powder from "The Records of the Holy Base")
2. The treatment of madness is because of depression, and phlegm has blocked the capsule of the heart. The second medicine * * * is the end, and the paste pill is big. Take 50 or 60 capsules each time and warm the soup. ("Skill Prescription" Platinum Pill)
3. Treating acute laryngitis with alum San Qian and croton (shelled and made into six valves). Put alum in a pot, boil it with slow fire until the water boils, put it in croton, and when it is dry, take out croton and grind the alum into powder. Blow a little into your throat every time. (Alum powder from Yu Ji Wei Yi)
4. Treating lung heat, relieving asthma and cough, eliminating phlegm and promoting fluid production, benefiting chest and diaphragm, and fixing one or two of Alumen (withered), Radix Rehmanniae Preparata (baked), Radix Scrophulariae, Rhizoma Anemarrhenae (baked), Bulbus Fritillariae Cirrhosae (fried) and Huli Lepi. The first six flavors are mashed into powder, and the batter and pills are as big as buttonwood. Take fifteen to twenty capsules each time, decoct ginger and jujube soup, and take it when you lie down after meals. (Alum Pill is from the General Record of Shengji).
5. Treat every alum (burning ash) one or two, sulfur one or two (fine grinding), Hu Fen one or two, Coptis chinensis one and a half (shaving), orpiment one or two (fine grinding), and Fructus Cnidii three points. Mash the medicine into fine powder, grind it evenly, wash it with pig paste and thin batter, and then dry it. (Alum in Sheng Huifang)
6. Eczema and dermatitis (subacute stage) 15g wormwood, Stemona, alum and musk are decocted and washed. ("Clinical Application of Traditional Chinese Medicine" 500 Ming Lotion)
7. Treat yellow sores with dried alum, cooked rosin and Huang Dan. Divide the three medicines evenly, grind them into fine powder, and smear the affected parts with genuine sesame oil. (primitive materia medica)
8. Treat umbilical cord cut and umbilical sore caused by exogenous wind for a long time in children, and divide alum (calcined) and white keel (calcined) equally. The research is ok, the last application, less use. If there are no two flavors, just stick to it. (General Micro-discussion Formula for Children's Health)
9. Treat carbuncle, backache, scrofula, leakage sore and malignant sore, protect intima, remove all kinds of toxins, and naturally exclude yellow wax and alum (raw use). Add fine powder, yellow wax or two, melt the juice, add alum and mix well in the furnace to make the hand pill big. Take 15 capsules each time, and often cook under water or ice wine. ("Zhi Zhi Fang" Wafan Pill)
10. Alum (raw) and Huang Dan for the treatment of furuncle, swelling and sore are divided equally. Study each place separately, copy a little evenly when using, use three ridges to acupuncture the sore surface to see blood, and cover it with plaster after the blood is exhausted. ("Health Treasure" Erxian Powder)
1 1. It is used to treat scrofula, furuncle, gangrene, etc. , alum 22 Liang, arsenic 125 Liang, * * * for the end, put it in a small pot, until the charcoal fire is red, the smoke is exhausted, and the white smoke turns red up and down. If there is a sign, insert the hole into the hole, insert the needle first without the hole, and insert the medicine twice in the morning and evening. After three or four days, a dozen tablets were inserted with large holes, and it was not until seven days that the medicine with holes was satisfied. After that, the four sides of the affected area cracked, and the tube for treating scrofula, hemorrhoid and leakage naturally fell off at about 14 day, and the symptomatic medicine was attached. ("surgical masterpiece" with three products and one shot)
12. Treat all injuries caused by snakes, insects and wild animals. In severe cases, toxic gas enters the abdomen, with dark eyes and dumb mouth and stiff hands and feet. This medicine does not hurt blood, alum or licorice, and it is ground into powder. Two yuan each time, regardless of cold water is applied to the affected area. (Jiedu powder in surgical principle)
13. Fine grind and sieve an appropriate amount of alum for treating aphtha, cut an opening in the upper part of pig bile, and stuff alum along the opening until it is full. Tie the opening of pig bile tightly with thread, hang it under the eaves to dry naturally, and when a layer of frost appears on the surface of pig bile (at least 1 year), take it down and grind it into fine powder, and bottle it for later use. When in use, a little bit is applied to the affected part three times a day. [journal of traditional chinese medicine 1983, (10): 50]
14. Treat tooth abscess with five pieces of alum (dried) and five pieces of chicken's gizzard-membrane (burnt), and wipe it off. ("Ruff Board House")
15. One or two pieces of alum (calcined ash) and one or two pieces of Fructus Cnidii are used to treat ear sores, head sores, oral fat sores and cochlear sores in children. Grind the medicine into powder and dry mix it on the sore. (Alum powder of Shenghui Fang)
16. Treat sore caused by hot air in nose, purulent odor and ettringite (burning), Radix Rehmanniae, Radix Sophorae Flavescentis. Cut the three herbs into powder, mix them with water, boil them for three times, filter them with cotton, and drip them into the nose for three to five degrees a day. ("Outside Taiwan Province")
17. For the treatment of nasal polyps, four ounces of alunite (boiled juice to dryness), half stem of Akebia stem (file), half root of Asarum (seedling leaves removed) and a little cinnabar (ground). The top is minced, and the even noodles are called meatballs, which are as big as adzuki beans. Every time you take the medicine, put it in your nose once a day, and it will be easy. When the polyp is taken out, it will stop. On the one hand, honey and pills, on the other hand, are twisted as thin as jujube stones and scattered as red beans, soaked in the nose. ("Puji Fang" Fan Shi Pill)
65438+ disease exorcism juice, sunset, will be embarrassing. (Fan Shi powder from Qianjin Fang Yi)
19. Alum for treating ear empyema is calcined into ash, added with rouge, and ground evenly. Put the pus and yellow water in the ear with a cotton swab, that is, don't introduce the medicine into the ear with a cotton swab and let it dry after mixing. (Hongmian powder, skill prescription)
20. Treat spleen-qi stagnation, diarrhea, diarrhea day and night, alum stone (boiling juice to dryness), Li Le (simmering, removing core), Coptis chinensis (removing beard), and Radix Aucklandiae. Mash the four ingredients into powder, soak the steamed cake in water, and filter into pills. As big as a buttonwood tree. Old rice drank 30 capsules before eating the hollow to stop the bleeding. (Fan Shi Pill, Total Record of Shengji)
2 1. Long-term treatment of dysentery, getting thinner every day. Four taels of alum (boiling the juice to the end), two taels of sulfur and one tael of stone are applied and ground at the same time. When it is cold, the ground juice is very fine, using soft rice and meatballs, which are as big as adzuki beans. Drink ten grains of porridge before each meal. ("Sheng Hui Fang" alum pill)
22. Treat women with irregular meridians and red and white leucorrhea with four ounces of dried alum and two ounces of Fructus Cnidii. The top is fine powder, the vinegar paste is the size of marble, the dry rouge is clothes, the cotton is wrapped around the vulva, and the hot electrode is changed again. ("Puji Fang" is like Shengdan)
23. It is not good for women to close water, and they are obsessed with hiding hardness. There is dried blood in it, three points for alum (burning) and one point for almond. The first two flavors, the last one, honey pills and jujube stones are big, hidden in it, and the dramatist is in it again. (Fan Shi Pill in Synopsis of the Golden Chamber)
24. Handling white turbid alum and talc (flying over). The top is the end, and the early rice paste is as big as a ball. Eat every 50 grains of rice. ("Ruff Board House" Zhuo Qing Lock Single Crystal)
25. Alumen and stone sulfur are used to treat vitiligo. The last two flavors are ground into powder, and rice vinegar is mixed into paste and applied to the affected area. ("Sheng Ji Zong Lu" Yu Fenqing)
26. Treat alum with four ounces of soapy alum, five ounces of tea and half a catty of arborvitae leaves. Use ten bowls of water and stir-fry for several times before using. First, apply tung oil to the affected area, light the oil paper, and smoke it to the affected area with smoke flame. When taking tablets, roll the precursor soup into the storage bucket, cover it with a cloth on the hand frame, smoke it on the soup, don't be discouraged, let it pour into the basin with a little temperature and wash it for a long time. Avoid soup for seven days. (Soup in the Secret Heart Surgery Law)
27. One or two dry alum for acne treatment, two yuan for raw sulfur and two yuan for Rhizoma Typhonii. * * * as the end, spit on gold bars. Take the medicine at night and wash it the next morning. ("rejuvenation of all diseases")
28. Treat jaundice and edema with two ounces of alum, one ounce of soap alum and half a catty of white flour. Stir-fry the three herbs, paste the pills with vinegar and yellow rice, and add 30 pills of jujube soup. ("First Aid Fairy Prescription" cart pill)
document
Classic: "Fan Shi tastes sour and cold. Indications: dispelling cold and heat, leukorrhagia, sore eyes and pain, strengthening bones and teeth. Take the bait, intellectual man fit and not old. A feather nie. Shenggu. "
Medical theory
1. On the catharsis, astringency, dryness and detoxification effects of alum ① Li Shizhen: "Alum has four functions: spitting phlegm beneficial to wind and heat and expelling its bitterness; Treat all kinds of blood pain, proctoptosis, yin stiffness, sore poison, take its acid and collect it; Treat phlegm, diarrhea, belt collapse, wind eye, take it and dry it; Treat sore throat, carbuncle, snake and insect sting, and take it to detoxify. " ("Outline") 2 Zhang Jingyue: "There are four uses: its taste is sour and bitter, and it can be vented, so it can spit and treat epilepsy and jaundice; It is astringent and firm, so it is used to treat leukorrhagia due to exhaustion, wind and blood in the intestine, proctoptosis, yin stiffness and golden sore to stop bleeding. Burning can stop bleeding between teeth, relieve fox armpit gas, and stop sweating of yin and feet; Its dryness can cure dampness, so it can stop diarrhea, restrain edema and wash away wind eyes with soup; Its toxicity can detoxify and relieve pain, so it treats carbuncle, nasal polyps, laryngitis, scabies, carrion, new meat and poisonous snakes. " ("Materia Medica") ③ Huang Yuanyu: "Alum stone is sour and dry, absorbing moisture and dissipating blood stasis. Good at spitting old phlegm, phlegm coagulates and sticks between the upper and lower tunnels. Immovable, swept away by alunite. Not allowed to hide in the government. High vomiting, low self-sufficiency. It's really not what it spits. " ("Changsha Medicine Solution") 4 Huang Gong embroidery: "The smell is sour and cold, which shows that it clears heat and receives heat. He Shu's word is dry and phlegm, if it is contrary to the cold word; Book words can cure wind phlegm, if it is different from what is said. If you don't know what the book says, you can dry phlegm, but the smell is warm and you can dry it, so you can start to dry it, don't stay confused; And it's sour and salty, so I still have the motivation to chase the saliva, but it's still not dry. The so-called person who can treat wind-phlegm can be swollen by expelling the bitter poison. When the wind-evil is used for the first time and combined with the taste of Gleditsia sinensis, it can be swollen, but the wind-heat is long and confusing, so it can be swollen. Based on wind, phlegm, diarrhea, collapse and stagnation. Blood is proctoptosis, yin is rigidity, collapse is wind eye, phlegm is sore, and astringency is effective; Sore throat, swollen carbuncle and snake wound are toxic. Use this acid and cold to relieve it. Although there are four treatments, I always take acid, cold and salty as my work. " ("Seeking Truth from Materia Medica")
2. On the principle of treating carbuncle with alum 1 Chen Shiduo: "If it is suspected that alum tastes sour, it is advisable to adopt poison instead of poison. Why is the poison used for carbuncle easy to change? " I don't know that ettringite is sour. Alum stone, a tangible thing, is tangible and intangible when put into decoction, and the taste of acid is scattered in acid, which is both sterilized and not scattered. This effect is even more amazing. (New edition of Materia Medica) ② Huang Yuanyu: "Those who manage carbuncle well will not be defeated by qi, carbuncle will disperse, and new muscles will grow, so there is nothing left. Yang declines, soil is wet, and qi is depressed. The carbuncle can't be sent out, and it hurts the house. It is death, the water in the house is wet, the soil is dry, and the gas is here, the more so. " (Changsha medical instrument)
3. Proper taboos for alum are used for diarrhea, excessive leucorrhea, eye pain, etc. 1 Miao Xiyong: "Alum, Benjing treats diarrhea caused by cold and heat, and this benefit refers to prolonged diarrhea, sliding diarrhea and cold and heat. Alum is too astringent, which can be stopped, so it can be controlled. Pretend that excessive dampness and heat, excessive accumulation of stagnation, wrong use will cause different harm, we must be careful. Women are mostly prostrate, so convergence is used to consolidate standards, not to explore the roots. Eye pain is not caused by pterygium and external obstacles, so it is not suitable. In addition to fixing the heat in the bone marrow, it can only be guided by it. If used alone, it will be harmful. Alum is anxious and can rob water, so it is not good for dental bones, and dental bones are also good. " Zhang Shiwan: "Hong Jing" said: "The classic is sharp-edged, which is really suspicious. Because of its nature, it is specialized in bone, and it will damage teeth if used too much. If you use less, you will strengthen your teeth, and your teeth are bones. "("This Classic Meets the Original ")
Alum is alkaline potassium aluminum sulfate KAl3(SO4)2(OH)6, in which K2O 1 1.4%, Al2O3 337.0%, SO338.6% and H2O 13.0%. Alum is potassium aluminum sulfate KAL (SO4) 2.65438+.